426593399 has 2 divisors, whose sum is σ = 426593400. Its totient is φ = 426593398.

The previous prime is 426593383. The next prime is 426593417. The reversal of 426593399 is 993395624.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 426593399 - 2⁴ = 426593383 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (426593309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213296699 + 213296700.

It is an arithmetic number, because the mean of its divisors is an integer number (213296700).

Almost surely, 2^426593399 is an apocalyptic number.

426593399 is a deficient number, since it is larger than the sum of its proper divisors (1).

426593399 is an equidigital number, since it uses as much as digits as its factorization.

426593399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1574640, while the sum is 50.

The square root of 426593399 is about 20654.1375757982. The cubic root of 426593399 is about 752.7857284417.

The spelling of 426593399 in words is "four hundred twenty-six million, five hundred ninety-three thousand, three hundred ninety-nine".